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MultiAgent Systems, 2000. Proceedings. Fourth International Conference on

Date 10-12 July 2000

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Displaying Results 1 - 25 of 103
  • Proceedings Fourth International Conference on MultiAgent Systems

    Publication Year: 2000
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    Freely Available from IEEE
  • What's needed to build team players? (Extended abstract for an invited talk)

    Publication Year: 2000, Page(s):3 - 4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (97 KB)

    In this talk, I will briefly review the major features of one model of collaborative planning, SharedPlans. The model provides a framework in which to raise and address fundamental questions about collaboration and the construction of collaboration-capable agents. I will discuss recent approaches to three plan management processes - assessment of alternatives, commitment management, and group deci... View full abstract»

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  • Index of authors

    Publication Year: 2000, Page(s):471 - 474
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    Freely Available from IEEE
  • Characterising simple negotiation as distributed agent-based theorem-proving-a preliminary report

    Publication Year: 2000, Page(s):127 - 134
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (212 KB)

    Negotiation is a key technique for dynamically organising activity in multi-agent systems, yet the negotiation process itself can often be difficult to reason about. We introduce a framework in which negotiation can be characterised as a form of distributed, multi-agent theorem-proving. Thus, in this preliminary analysis, we show that certain simple forms of negotiation will be successful if, and ... View full abstract»

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  • Using similarity criteria to make negotiation trade-offs

    Publication Year: 2000, Page(s):119 - 126
    Cited by:  Papers (25)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    Addresses the issues involved in software agents making trade-offs during automated negotiations in which they have information uncertainty and resource limitations. In particular the importance of being able to make tradeoffs in real-world applications is highlighted and an algorithm for performing trade-offs for multi-dimensional goods is developed. The algorithm uses the notion of fuzzy similar... View full abstract»

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  • Multi-agent reinforcement learning for planning and scheduling multiple goals

    Publication Year: 2000, Page(s):359 - 360
    Cited by:  Papers (6)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (212 KB)

    Recently, reinforcement learning has been proposed as an effective method for knowledge acquisition of multiagent systems. However, most research on multiagent systems applying a reinforcement learning algorithm, focus on a method to reduce complexity due to the existence of multiple agents and goals. Although these pre-defined structures succeeded in lessening the undesirable effect due to the ex... View full abstract»

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  • Towards socially sophisticated BDI agents

    Publication Year: 2000, Page(s):111 - 118
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    We present an approach to social reasoning that integrates prior work on norms and obligations with the BDI approach to agent architectures. Norms and obligations can be used to increase the efficiency of agent reasoning, and their explicit representation supports reasoning about a wide range of behaviour types in a single framework. We propose a modified BDI interpreter loop that takes norms and ... View full abstract»

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  • Architecture-centric object-oriented design method for multi-agent systems

    Publication Year: 2000, Page(s):469 - 470
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (108 KB)

    This paper introduces an architecture-centric object-oriented design method for MAS (Multi-Agent Systems) using the extended UML (Unified Modeling Language). The UML extension is based on characteristics of MAS and concept of software architecture which helps to design reusable and well-structured multi-agent architecture View full abstract»

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  • A multi-agent channel allocation scheme for cellular mobile networks

    Publication Year: 2000, Page(s):63 - 70
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    Techniques for increasing the efficiency of channel usage in cellular networks are needed to handle the heterogeneity of services and bit rates to be supported in the forthcoming third generation of mobile communications. Therefore, resource flexibility is essential to handle the limited frequency spectrum available for network operators. This paper proposes a new scheme to improve the performance... View full abstract»

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  • Justifying multiply sectioned Bayesian networks

    Publication Year: 2000, Page(s):349 - 356
    Cited by:  Papers (9)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    We consider multiple agents whose task is to determine the true state of an uncertain domain so they can act properly. If each agent only has partial knowledge about the domain and local observation, how can agents accomplish the task with the least amount of communication? Multiply sectioned Bayesian networks (MSBNs) provide an effective and exact framework for such a task but also impose a set o... View full abstract»

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  • Evolutionary online learning of cooperative behavior with situation-action pairs

    Publication Year: 2000, Page(s):103 - 110
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    We present a concept to use off-line learning approaches to achieve online learning of cooperative behavior of agents and instantiate this concept for evolutionary learning with agents based on prototype situation-action-pairs and the nearest-neighbor rule. For such an agent model also modeling of other agents can be achieved using the agent's own architecture with situation-action-pairs derived f... View full abstract»

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  • Towards large-scale conflict resolution: initial results

    Publication Year: 2000, Page(s):403 - 404
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    With the increasing interest in distributed and collaborative multi-agent applications, conflict resolution in large-scale systems becomes an important problem. Our approach to collaborative conflict resolution is based on argumentation. To understand the feasibility and the scope of the approach, we first implemented the process in a system called CONSA and applied it to two complex, dynamic doma... View full abstract»

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  • Adaptive agent integration architectures for heterogeneous team members

    Publication Year: 2000, Page(s):301 - 308
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1356 KB)

    With the proliferation of software agents and smart hardware devices there is a growing realization that large-scale problems can be addressed by integration of such standalone systems. This has led to an increasing interest in integration architectures that enable a heterogeneous variety of agents and humans to work together. These agents and humans differ in their capabilities, preferences, the ... View full abstract»

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  • Communication in multi-agent Markov decision processes

    Publication Year: 2000, Page(s):467 - 468
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    In this paper, we formulate agent's decision process under the framework of Markov decision processes, and in particular, the multi-agent extension to Markov decision process that includes agent communication decisions. We model communication as the way for each agent to obtain local state information in other agents, by paying a certain communication cost. Thus, agents have to decide not only whi... View full abstract»

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  • Wayward agents in a commuting scenario (personalities in the minority game)

    Publication Year: 2000, Page(s):55 - 62
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    In our daily lives we often have to face binary decisions where we seek to take the minority's choice, e.g., in traffic scenarios where we have to choose between similar alternative routes. We have studied agent coordination mechanisms in a binary decision model introduced in the literature, the minority game (Challet et al. (1998)). Extending this model, we introduced personalities which model ce... View full abstract»

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  • The computational complexity of agent design problems

    Publication Year: 2000, Page(s):341 - 348
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    The paper investigates the computational complexity of a fundamental problem in multi-agent systems: given an environment together with a specification of some task, can we construct an agent that will successfully achieve the task in the environment? We refer to this problem as agent design. Using an abstract formal model of agents and their environments, we begin by investigating various possibl... View full abstract»

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  • An experimental evaluation of domain-independent fault handling services in open multi-agent systems

    Publication Year: 2000, Page(s):95 - 102
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    A critical challenge to creating effective open multi-agent systems is allowing them to operate effectively in the face of potential failures. We present an experimental evaluation of a set of domain-independent services designed to handle the failure modes (“exceptions”) that can occur in such environments, applied to the well-known “Contract Net” multi-agent system coordi... View full abstract»

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  • Experiences in simulating multi-agent systems using TÆMS

    Publication Year: 2000, Page(s):455 - 456
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    As researchers in multi-agent systems, we hope to build, deploy, and most importantly evaluate multi-agent systems in real, open environments. Unfortunately, working in such environments usually implies we expend significant energy on resolving issues orthogonal to the initial goals of the research, such as dealing with the knowledge engineering and low-level system integration issues. To avoid su... View full abstract»

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  • An analysis of a supply chain management agent architecture

    Publication Year: 2000, Page(s):401 - 402
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    The authors illustrate a methodology for early agent systems architecture analysis and evaluation with the focus on risk identification, evaluation, and mitigation. Architectural decisions on software qualities such as performance, modifiability, and security can be assessed. The illustration is drawn from the supply chain management application domain View full abstract»

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  • Intention reconciliation by collaborative agents

    Publication Year: 2000, Page(s):293 - 300
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    Research on resource-bounded agents has established that rational agents need to be able to revise their commitments in the light of new opportunities. In the context of collaborative activities, rational agents must be able to reconcile their intentions to do team-related actions with other conflicting intentions. The SPIRE experimental system allows the process of intention reconciliation in tea... View full abstract»

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  • Organization models and behavioural requirements specification for multi-agent systems

    Publication Year: 2000, Page(s):387 - 388
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (100 KB)

    The main question addressed in this paper is how requirements on the dynamics of a multi-agent systems and individual agents can be related to the dynamics of high-level concepts given by an organisation model, such as groups, roles within groups, and role interaction View full abstract»

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  • A taxonomy of middle-agents for the Internet

    Publication Year: 2000, Page(s):465 - 466
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (212 KB)

    Like middle-men in physical world, middle-agents assist in locating and connecting the ultimate (information or goods) provider with the ultimate requester in the electronic world. In this paper, we identify a basic list of dimensions along which middle-agents can differ from one other, and derive a taxonomy View full abstract»

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  • Learning team coordination constraints through execution

    Publication Year: 2000, Page(s):417 - 418
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    Agents working together in teams can tackle user-defined tasks more complex than those they can perform as individuals. However constructing such teams remains a difficult challenge. In particular current approaches to designing agent teams are highly labor-intensive. Human designers must deal with overwhelming complexity in trying to manage the large number of interactions and dependencies that m... View full abstract»

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  • Assessing usage patterns to improve data allocation via auctions

    Publication Year: 2000, Page(s):47 - 54
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    The data allocation problem in incomplete information environments consisting of self-motivated severs responding to users' queries is considered. Periodically, the servers use auctions for allocation of new data items, and for reallocation of old data items. The utility of a server from storing a data item strongly depends on the usage of the item. However, each server has information only about ... View full abstract»

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  • Agent societies without dilemmas: an evolutionary approach

    Publication Year: 2000, Page(s):431 - 432
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    The social sciences literature abound in problems of providing and maintaining a public good in a society composed of self-interested individuals (Hardin, 1968). Public goods are social benefits that can be accessed by individuals irrespective of their personal contributions. We had previously used genetic algorithms (GAs) for generating an optimized agent society that can circumvent a particularl... View full abstract»

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